static void Main(string[] args)
{
//静态方法,注意委托没有空构造方法
//PrintHelloWorld Hello1 = new PrintHelloWorld(); //不对
//PrintHelloWorld Hello1 = new PrintHelloWorld(null); //不对
PrintHelloWorld Hello1 = new PrintHelloWorld(SayHello);
Program pg = new Program();
pg.Name = "Instance Method";
//实例方法
PrintHelloWorld Hello2 = new PrintHelloWorld(pg.InstanceSayHello);
//委托组合1
PrintHelloWorld Hello3 = Hello1 + Hello2;
//委托组合2: 使用+= -=
Hello1 += Hello2;
Hello1 -= Hello2;
//委托组合3: 直接加方法签名 //!!!!!!!!!!!!!!!!
Hello1 += SayHello;
//自定义事件的使用
TestEvent Test = new TestEvent();
Test.SelfDefineEvent += pg.TestEventSelfEventRaised;
Test.RaiseEvent();
Console.WriteLine();
Console.WriteLine("Press any key to exit...");
Console.ReadKey();
}
// GET api/values
public string Get()
{
//return new string[] { "value1", "value2" };
PrintHelloWorld words = new PrintHelloWorld();
return(words.PrintHello());
}